Impeovement in anchoes



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W. J. ARMSTRONG AND CHARLES BRO WNE, OF BROOKLYN, NEW YORK.

Letters Patent No. 70,498, dated November 5, 1867.

IMPROVEMENT IN ANGHORS.

TOl ALLWVHOM IT MAY CONCllRN;A

Bo it known that we, W. J. ARMSTRONG and CHARLES BnowNE, of Brooklyn, intho county of Kings, and State of New York, have invented a new andimproved Self-Clearing Anchor; and we do hereby declare that l thefollowing is a full, clear, and exact description thereot`, which willenable others skilled in the art to make and use the samcQreferencebeing had to the accompanying drawings, forming part of thisspecification.

Figure 1 is an edge viewof our improved anchor, parts being broken awayte show the construction.

Figure 2 is a side View of the same, parts being broken away to show theconstruction.

Similar letters of reference indicate corresponding part-s.

Our invention has for its object to furnish an improved anchor, strong,durable, and simple in construction, and which shall be so constructedas to clear itself should it heeonie fouled; and it consists in theconstruction et' the crown, shank, and stock of the anchor, and in themanner in which said parts are attached to each other, as hereinaftermore fully described.

A is the shank ofthe anchor, upon the lower end of which is formed atenen, a', the shoulders of which incline in cach direction from thecentral point, as shown in fig. 2, so that the crown B of the anchor mayrock upon the said tchou to enable the linkes C to take a surer holdupon the ground. .The crown B is made with a slot through it to receiveand fit upon the tenen a' of the shank A, the ends of said slot beinginclined outward in each direction from the centre, as shown in dottedlines in iig. 2, to enable the said crown to rock upon the tenen'Without getting out of its proper relative position. It will beobserved that when the fluke C of the anchor has hold of the ground, theedges of the crown B rest against the inclined shoulders of the shank A,and the inclined ends of the slot through thc crown B rest against theedges of the tenen a', so as to give the connection great rmness andstrength.l The crown B is secured in place upon the tenen a ot' theshank A by the blocks D, which are riveted, welded, brazed, or otherwisesecurely and iirmly attached to the sides of the lower end of thesaidtenen a. The upper ends of the blocks D are inclined outward from theircentral points, as shown in iig. f2, in the saine manner as theshoulders ot' said tenen. The stock E is made in two parts, the innerend 'olf each part having a tenon formed upon it which passes through amortise formed in the upper end of the shank A for its reception. Theparts of the stock E are secured in place in the shank A by blocks Friveted, welded, brazed, or otherwise securely attached to the side ofthe said tenons. The mortise through the upper part of the shank A is.so formed, and the shoulders of the tenons and the inn-er ends of theblocks F are so inclined, that the outer ends of the parts of the stockmay incline upward to allow the cable to slip 01T the stock should itbecome fouled, but they cannot move downward further than to be at rightangles to the shank A. This construction allows the crown B and upperend of the shank A, where they are weakened by the mortses,

- to be made of any desired thickness, so as to be of any desiredstrength.

We claim as new, and desire to secure by Letters Patent- 1. Attachingthe crown B tothe shank A bypassing a tenen formed upon the lower end ofsaid shank through a mortise formed in the said crown, and securing themin place by blocks D firmly attached to the sideA L oi' the projectingond of said tenen, substantially as herein shown and described, and forthe purpose set forth. 2. Forming the stock E in two parts, andattaching them to the upper end of the shank A bypassing tenons formedupon the inner ends of said parts through a inortise formed in the upperend of said shauh, and securing them in place by means of blocks F rinlyattached to the projecting ends oi said tenons, substantially as hereinshown and described, and for the purpose set forth.

The above specication of our invention signed by us this 18th day ofSeptember, 1867.

w. J. ARMSTRONG,

CHAS. BROWNE. Y

Witnesses: Y

WM.y F. McNAMAuA, JAMES To GRAHAM.

